function drupal_strtolower

Lowercase a UTF-8 string.

Parameters

$text: The string to run the operation on.

Return value

string The string in lowercase.

Related topics

File

includes/unicode.inc, line 526

Code

function drupal_strtolower($text) {
    global $multibyte;
    if ($multibyte == UNICODE_MULTIBYTE) {
        return mb_strtolower($text);
    }
    else {
        // Use C-locale for ASCII-only lowercase
        $text = strtolower($text);
        // Case flip Latin-1 accented letters
        $text = preg_replace_callback('/\\xC3[\\x80-\\x96\\x98-\\x9E]/', '_unicode_caseflip', $text);
        return $text;
    }
}